Created attachment 637058 [details]
emerge --info ncmpcpp
After updating to gcc-10.1.0, eselecting it, and updating to boost-1.73.0 today, the latter forced a rebuild of ncmpcpp. That build failed. But eselecting back to gcc-9.3.0 and trying again build fine, so gcc-10.1.0 is the fail-trigger.
USE="clock taglib visualizer -outputs"
In file included from screens/help.cpp:21:
./mpdpp.h: In constructor 'MPD::Playlist::Playlist(std::string, time_t)':
./mpdpp.h:182:15: error: 'runtime_error' is not a member of 'std'
182 | throw std::runtime_error("empty path");
./mpdpp.h: In constructor 'MPD::Item::Item(mpd_entity*)':
./mpdpp.h:231:16: error: 'runtime_error' is not a member of 'std'
231 | throw std::runtime_error("unknown mpd_entity type");
./mpdpp.h: In member function 'ObjectT& MPD::Iterator<ObjectT>::operator*() const':
./mpdpp.h:438:15: error: 'runtime_error' is not a member of 'std'
438 | throw std::runtime_error("no object associated with the iterator");
make: *** [Makefile:756: screens/help.o] Error 1
make: *** Waiting for unfinished jobs....
make: Leaving directory '/tmp/portage/media-sound/ncmpcpp-0.8.2-r1/work/ncmpcpp-0.8.2/src'
make: *** [Makefile:494: all-recursive] Error 1
make: Leaving directory '/tmp/portage/media-sound/ncmpcpp-0.8.2-r1/work/ncmpcpp-0.8.2'
make: *** [Makefile:405: all] Error 2
^[[31m*^[[0m ERROR: media-sound/ncmpcpp-0.8.2-r1::gentoo failed (compile phase):
emerge --info ncmpcpp attached, full log to be attached.
Created attachment 637060 [details]
failing build log